The Chevrolet L72 427 is a legendary big-block engine that powered some of the most iconic muscle cars of the 1960s. Known for its impressive horsepower and performance, the L72 427 has become a ...
There were many variations on the 427 big-block theme, with the designation of the engine’s RPO option codes making up the lexicon. Two versions of the 427 debuted in the Corvette line up for 1966.